Ship&#39;s log



R. STAR SHIP S LOG oct. 23, 1934.v

A IINVENTOR j/c/m/'a/,Sfm' BY mf? ATroRN Y WITNESSES Patented Oct. 23,1934 PATENT Norrics l SHIPS LOG Richard Star, Brooklyn, N. Y.; FrankKruth administrator of said Richard Star, deceased Application March 9,1933, Serial No. 660,177

10 Claims. "(Cl. *i3-122) This invention relates to logs for ships and`has for an object to provide an improved construction wherein one ormore indicators may be used Yand placed at any desired point on theship.

Another object of the invention is toprovide an improved log for shipswherein an actuator is v provided and arranged at the lower partofthelarly, is the provision of a log for ships wherein 30:View through theactuator "shown in Figure 1, the

55pipe 6 into the body of water supportingr the Ship.

shipbut formed to actuate the indicators at vari` ous points over theship.

Al further object of the invention, more particuthere is provided anactuator receiving its power through `the use of a Pitot tube, andamotor driven by Waterforced through thePitot tube as the ship on whichthelog is positioned moves the actuator and the indicator, thearrangement being suchthat any expansion or contraction will beautomatically taken up so that the indicator yWill be caused to functioncorrectly andin unison withthe actuator.

In the accompanying drawings- Figure 1 is a vertical sectional Viewthrough part of aship showing the general arrangement of the log.including the actuator, indicators and power transmitting means);` o

Figure 2 is a longitudinal, vertical, sectional same beingv on a largeScale;

Figure 3 is a` sectional View through Figure 2` on the line 3 3;

` Figure 4 is a View partly in section and partly yin` elevation showing`one of the indicators illused with a Pitot tube 5whereby water isforced upwardly intoA the.actuator' as the ship moves forward. Theexhaust water from the actuator 4passes `downwardly and out, throughpipe 6 whichrsurrounds the tube 5 but is largerfthan the same so` thatthere will be ample space for the exhaustwater to pass to apointexterior of the ship. As the ship `moves forward water enters thePitot tube and passes `upwardly andthrough the actuator 4 and thendownwardly ,through As indicated in Fig. 1, there is a standpipe 5 whichacts as a vent, the level of waterwbeing shown at 5". As the waterpasses out of actuator 5and be exhausted therefrom.

The actuator is shown'more Vor less in detail in Figs. 2 and 3 towhich'references are now made.

yAs Aillustrated particularly in Figure 2, there' is t provided ahousing 7 secured in any desired man#- ner to the bottom of the ship orto some support on the ship whereby it will be rigid with the ship.v

`.Arranged in the housing 7 isa water motor 8` which is shown as beingof the wabbling type, though an oscillating piston type or other type ofmotor may be used without departing from the spiritof the invention. Thewabbling type of motor is shown in Figure 2 and has been found to bevery desirable as it will function either with a small head of water orwith a great head of water and will move in proportion to the head ofwater used. As the motor 8 functions the arm 9 will swing around in acircle and will carry with it the" arm 10 which is rigidly secured toshaft 11. A` roller 12 is rotatably mounted on arm 9 so as to reducefriction between the parts. Shaft 11 will rotate therefore at the samespeed as motor 8. This shaft is connected to a train of gearing 13varranged in the auxiliary housing 14, said train of gearing reducing thespeed but naturally in`` creasing the power so that the gear wheel 15will rotate at a less speed than shaft 11. This gear wheel `hasa pair ofapertures l'into which the forked member 17 extends. It will be notedthat the apertures 16 are larger than the forks of the forked member 16whereby there is a slight loose motion between the parts. This isdesirable because it does not necessitate all the parts being accuratelymounted, while at the same time it' permits power to be transmittedreadily to shaft 18 to whichthe bifurcated member 1'7 isfrigidly securedby a rivet or other means. 'Shaft 18 extends into an auxiliary housing19, said auxiliary housing accommodating the lower end of pipe 20 sothat the wire cable orother member 21 may extend ina vertical direction.The lower end of cable 21 is secured by a suitable fitting 22rigidly tothe arm 23, which arm is pivotally mounted at 24 on a suitable support,as, for instance, on casing '7. Shaft 18has rigidly secured thereto adouble armed cam 25 which is shown as lying flatwise against theswinging arm 23. A weight 26 is slidingly mounted on arm 23, said weightbeing locked in different positions by the set screw 27.V This weightfunctions to maintain a pull or strain on cable 21 and connected partsso that it will `4lthe air may readily pass upwardly through pipe 60only be necessary Vto put a small additional pull on the cable by thecam in order to move the cable and operate the different indicators.

When the parts are in proper functioning position, arm 23 is continuallyresting against the cam 25 so that as this cam moves the arm will beswung. For instance, when the cam moves from the position shown inFigure 3 to a position at 90 therefrom, arm 23 will be moved downward toits extreme lower position. A further movement of 90 will bring 'cam 25to the position shown in Figure 3 and arm 23 will automatically moveback to the position shown in Figure 3.

It will thus be seen that for each revolution of shaft 18, arm 23 willmove downwardly and back twice. The ratio between the rotation of shaft11 and shaft 18 may be any desired ratio, but preferably shaft 18rotates very much slower than shaft 11. For instance, it may rotate fouror five times per minute, while shaft 11 may rotate fifty to one hundredtimes per minute. YAs the ship 1 moves forwardly the motor 8 will beginto function as long as the ship is in motion. This will cause shaft 18and cam 25 to move Ycontinu-l ally and, therefore, continually actuatearm 23.

The cable 21 extends" upwardly to a point approximately at 28, where theauxiliary cables 29 and 30 are connected thereto. These auxiliary cablesextend upwardly and over the pulleys V31` and 32, and-from thence overpulleys 33 and 34.

Cable extends from pulley 34 to the indicator 2, while cable 29 extendsfrom pulley 33 to the indicator 3.

If additional indicators are desired, any desired inumber of cables maybe connected with cables 29 and 30, as, for instance, cable 35 is shownin Figure 1 as being connected to cable 29 at 36 and extends over pulley37. Cable 35 can be connected to an indicator shown as indicator 3 and,

' if desired, additional cables can be connected with cable 35, so thatany desired number of indicators may be used and may be placed atvarious points -over the ship. All these cables are continually undertension so that even the slightest movement of arm 23 will produce acorresponding movement in the variouscables and the various indicators.As illustrated in- Figure 1, the various cables are incased in suitablehousings such. as `ordinary pipes, whereby they are prevented fromsagging or accidental injury. I

As all of the indicators are of identicalv construction, a description`of indicator 2 will apply to all the other indicators. Indicator 2 isshown in Adetail in Figures 4 and 5 wherein the cable 30 is shown asextending upwardly into the casing 38 and over pulleys 39 and 40,whereby the weight 41 may be secured to the end thereof and be actuated'properly by gravity to maintain cable 30 under tension. As is wellknown, ships will roll as they pass along over the ocean andsometimes'vthey will toss. `To prevent any appreciable swinging movementof thev weight V41 a guiding structure 42 is provided wherebyappreciabler swinging is'prevented but-the weight is permitted 'readyup-and-down movement at all times.` To

pulleys 39 and 40 whereby an even balance is secured. Pins 49 and 50 arealso carried by the casing 38 and act to limit the swinging movement ofthe frame 43, though they do not in any way aifect the rotary movementof the pulleys 39 and 40. However, a spring 51 is mounted on shaft 48and extends to a position for pressing against the sides of pulleys 39and 40, as shown in Fig. 5, whereby these pulleys are pressed againstbar 44, thus producing a desired friction. For instance, when the partsare as shown in Figure 4, and wire 30 is pulled downwardly the frictionholding pulleys 39 and 40 is such that they will not at first be rotatedbut will remain stationary in respect vto the frame 43, but this framewill swing downwardly until it strikes pin 49. If there is any furthermovement of the cable 30, the pulleys will then begin to rotate and theweight 4l will be raised. When cable 30 is attempting to give slack, areverse action takes place, namely, the rst action is to swing frame 43back to the position shown in Figure 4, and then pulleys 39 and willrotate as the weight 49 takes up all the slack. Asthe arm 23 swingsupwardly and downwardly slowly, weight 41wi1l move accordingly, namely,itwill move upwardly and downwardly,

- is pivotally mounted at 56 to thercasing 38 and carries a bifurcatedmember 5'7 which straddles the lever and is pivotally connected theretoby pin 58. The arms or bifurcations 59 not only straddle the lever 54,but straddle the toothed Wheel 60. A pin 61 extends through the members59 near their lower ends, said pin being adapted to engage the teeth onthe wheel 60 so as to rotate this wheel step-by-step as the bifurcatedmember 57 moves upwardly and downwardly. It'` will be seen from Figure 4that the bifurcations 59 have lower extensions 59' which always extendbelowfthe shaft 62 so that Weight 59, which is rigidly secured to orformed integral with member 57, cannot swing the bifurcations 59 beyondshaft 62 and thus causesthe parts to always remain in position so thatpin 61 will engage the proper tooth on the wheel 60.

When the cable 30 `is pulled downwardly from the position shown inFigure 4, lever 53 and associated parts including pin 6l will movedownwardly sumcientlyvto rotate the wheel 60 onesixth of a'revolution,or avdistance of one tooth. As soon as the/cable 30 is released andmoved upwardly, the parts will move gradually upwardA and assume theposition shown in Figure 4 ready for the next movement downward. f

Wheel 60 is rigidly secured to shaft 62 which is in turn secured to apointer 63 which moves over the dial 64, which dial is preferably formedwith graduations. By timing the movement of the pointer 63 anyone mayascertain the speed of the ship. It will be understood that the motor 8and associated parts are set to function so many times per mile. Forinstance, if the parts should beso set that lever 63 is swung downwardlytwenty-four times per mile, and it should be seen that pointer 63 vmovesaround the dial four times in ten minutes, it will be clear that theship is moving one mile every ten minutes, or six miles per hour.The'pointer 63 and associated parts really act as the principal parts ofthe indicator, but

inlorder ltoouty thesnumberfofmiles traveled, additional mechanism.hasxabeenf provided; 1

'4t it twillY be 4seen: rthat-flink Gli-l` is pivotallyr connectedfliovthe. arm 754;. and pivotallyi connected i atoottcfarrn 1w', .which arm.is pvotalzff. ly connected at` Llto the:- casing; 38": Abitureatedmember-+57?, stxnilar'to mernber't,` is provided. witl'nacounterbalancing weight: 63T yse lthatthe pinl'.'and'parts-1associatedgtherewithlmayziunctionximrespect:totheftoothedlwheel 60:` in a.: lar mannerrtothe;rvvaoyf` thesameepartsffunctioniin;

v roslzxecti` tot 'the-wheel'y; onder thatL the wheels i and-iwf" mayvfIuanctiocrlproperlyandsnotl rotate ini areverse: direction,rx'esilientf` parels: on springsf" and y62"- `are` provided.. As` ,there, spective wwheelsarotate in the. rcfzirrect directionthese?resilient` members.: move out'. of theL way, but; willi` quicklysnapf backr:into;,position las: soon asf al tooth2is passed, i f

The toothed memberf'has; teethl of' the same number as toothed memberf60, wherebydheishatt 68` rotates at the samespeedas'fshaft62. Shaft'f68v is-connected by suitable gearing: to` the.A various pointers 69, '70landf'll. whichzform azregister` For instancadial'l 'l2 over which :thepointer 69,moves; may-1 be divided into ten parts lsothati one revoluftion off the pointer 69 will indicate ten miles; ror` knots, aspreferred. Preferably'thedials 73.and` Marelikewiseprovidediwithdivisions of ten so that when pointer 69 has reached oneyrevolution pointer 70will rotateoneitenth of a revolution, and' whenpointerUOflhas rotated` one, `revolution pointer .'lV will `rotateone-tenth of' a revolution. By adding 'the number of miles indicated.yby" all three dial'sathe distance traveled byi the {ship willi befound.It will be. noted that. when pointer 71 has made-acompleterevoiutioncthe register starts allover again tolregistera newsetnf miles. If for` any reason thedistance measured by pointer 'il isnot sufiicient,` another `pointer andassociated;

partsmay be provided" and. `connected up withpointer 'Itin the samewaythatrpointer 'llis connected up with pointer 70; Itfwilhbelunderstoodthat a well? known `train ofrgears connect yall these pointers, so thatthey l will function as described.

lf' desired; an ordinary distance: meter ors" indicator' may beV used'and shaftff geared thereto.

If a` pointer was mountedeonushaft 6,8. it would.

function identically with pointer 63 Preferably `the motor Sandassociated parts :are rather small and, therefore, takeup very-litiflevspaceon the ship. Aliso, preferably; .the indie catcrs are small andconsequently.'xnayfbezplaced,y convenientlyinv.the?captains cabin, inthe pilot house, in the engineers room, and at other points.

It will be noted that the combined weights 41 of the various indicatorsare slightly heavier than the weight 26 so asl to maintain the Variouscables or wires continually taut. By arranging I the parts in this way,the slightest movement of the cable 30 will be transmitted to theindicators so that the indicators will accurately indicate the action ofthe motor 8 and associated parts, which motor and parts form theactuator or driving mechanism operated by the flow of water through thePitot tube 5. It will also be noted that all parts of the log aremechanical and that the system is substantially balanced so that only avery small amount of power is needed for actuat- I claim:- 1. A shipslog lincluding a plurality of indicators adapted to be placed atdifferent points on `-a ship, a cable extending from each of saidindicators, said cables being connected together, a

, -251ml ashipsr log, an indicator, a cable for actuating the indicatorand arweight fonmains taining thepull in one direction on the cable,said .indicatory including a pointer, a. ratchet Wheely rigidlyconnectedwilthfsaid pointer, a` swinging structure i adapted to` engage saidvratchet.A wheel for moving the same step-byestep, a swinging' framecarrying a pair of pulleys, said pulleys ac-` commodating said cable,means for producing friction between the pulleys and frame sunicient,toperm-it the cableto swing the frame before` the pulleys will rotate,means for connecting said frame with said ratchet operatingmeans'where-4 by'when said frame is swung by movement of said cable,said ratchet operating means `will function.. 3; In aships log, a framecomprising a pair of* side plates, a pair of pulleys arranged betweenlsaid' side plates, said pulleys being arranged at the respective ends ofsaid side plates, and means for retarding the-rotation of saidpulleys,a. shaft extending through the cen-terofsaid frame for piv.-` otallymounting the frame, meansfor limiting the rocking movement of said frameon the pivotal mounting thereof, a cable positioned with part. extendingover said pulleys, means `for pulling said cable inone direction, aweight for pulling, said cable-in the opposite direction whereby said-`rame is rocked, a lever connected with .,saidf frame, said" lever beingVpivotally mounted at one` end, a swinging member pivotally mounted on.said lever, a weight for causing said swinging, member to continuallytend to swing in `a given direction, alpin carriedby said swingingmember, a rotatableratchet wheelA positionedV to be enf-` gaged by saidpin and 'moved step-by-step thereby,` said pin moving said ratchet wheelone step uponi, each downward swingingn movementv of said lever,andmeans including a. pointer for indicating the amount of movement ofsaid ratchet; wheel.

Y 4; In a` ships `log, an indicator including1 a` regis-terror1indicating the dstance traveled, a. pointer, a toothedlwheel securedtocsaidpointer, a. second toothed wheel formingpart ofV said; register,means for s-imultaneously` intermittently mov.- ing said toothed wheels,a swinging frame for moving said means, abutments acting to limit theswinging movement of said frame, a pair of pulleys mounted on saidframe, and means for producing friction against the pulleys so as tocause them to resist rotation, a cable mounted on said pulleys, saidcable adapted to be reciprocated, means for moving said cable in onedirection, a Weight connected to said cable functioning to move thecable in the opposite direction, whereby when said cable is moved in onedirection the frame will swing in a given direction until it reaches oneof said abutments, and when the cable moves in the opposite directionthe frame will swing in the opposite direction until it strikes theother abutment, said cable being permitted to move extra distanceswithout affecting the position oi the frame.

5. In a ships log, a cable, a cable actuated indicator comprising aswingable frame, a pair of pulleys mounted on said frame over which saidcable 50 lili) passes, meansv for frictionally resisting the rotation ofsaid pulleys whereby when said cable is moved in either direction theframe will, swing before saidpulleys will rotate, means for limiting theswinging movement of said frame` in both cured. to said pointerpositioned tobe engagedr by said pin and moved as the pin is actuated. v

1 6. In a ships log, a cable, a cable actuated indivl cator comprising aregister for indicating the distance traveled, a pointer, means actuatedby said cable for causing said pointer and register to function, saidmeans including a ratchet wheel connetedwith the pointer and registerrespectively, a Weight actuated pawl cooperating with each of saidvratchet wheels, a lever pivotally mounted on one end for each of saidpawls, means for pivotally mounting said pawls on the respective'levers,alink connecting the respective levers so that they. will act in unison,a swinging frame,

.a link connecting the swinging frame with vone of said levers, so thatwhen the frame swings in one direction the pawls will function to rotatethe respective ratchet wheels, and when swung in an opposite directionsaid pawls will be moved back 'l to engage new teeth, means on saidframe -for re ceiving said cable, andfriction producing means to causevthe cable receiving means to not function untilafterv said frame hasbeen swung a predetermineddistance.

r 7. In a ships log, a cable, a cable actuated indi-A of the toothedwheel, and an extension positioned to swing against the shaftcarryingthe toothed wheel when the pawl is not engaging the teeth, ar

Weight carried by said pawl for tending 4to swing the same in agivendirection, a lever, means for ipivotally vmounting the pawl `on thelever, andl a rocking frame actuated by said cable for moving said leverup and down as the cable reciprocates.

8. In a ships logan indicator, a cable for actuating the indicator, andan actuator for causing the cableto function, said actuator including aPitot tube,a water motor adapted to be operated by the water passingthrough said-Pitot tube, an-

arm pivotally mounted at one end and secured at the other end to. saidcable, a cam for moving said arm in onedirec'tion so asito pull saidcable;

said cam having a pair of parallel flat sides and a pair ofrounded ends,one of said sides normally resting 'flatwise against the upper surfaceof `said arm and means for transmitting powerfrom said motor-to said camfor rotating the cam so that said arm will be Lintermittently moved andthe cable will be pulled and then released alternately,l said means.including a transmitting structure` formed in such a way that the'camwill operate at a much slower speed than said motor 9. A-ships logincluding anindicator,l a cable for actuatingsaid indicator, a weightconnected to said'cable and acting to pull the cable when permitted andan actuator for vcausing the cable to move in the opposite direction'tothe movement caused by said weight, said actuator including a pivotallymounted arm connected to said cable, a cam having a pair of parallelflat surfaces and a pair of rounded ends for swinging said arm in onedirection and then gradually releasing the same so that said weight mayfunction, a water motor for actuating said cam, said cam beingpositioned so that the flat surfaces and rounded endswill alternatelyengage said arm for at one time swing-v ing water into the water motor,and means including .a discharge tube for directing water from the watermotor. 10. In a ships log, an actuator, a cable moved in one directionby the actuator, an indicator4 adapted to function through ythe movementof said cable, a weight arranged within the indicator for moving thecable in a direction opposite to the direction of movement caused bysaid actuator, whereby said cable will be given a back and forthmovement, an indicating member carried by the indicator, a toothed wheelconnected with the indicating member, a` pawl forintermittently rotat-Aing said toothed wheel, and means for actuating said pawl, said meansincluding a rocking frame, said frame including a pair of side. plates,a pair of fpulleys, journal members for supporting said.

pulleys on said sidemembers, said cable being fitted over said pulleys,and a spring acting against one of said side members and against thepulleys for forcing the pulleys against the other side member withsuflicient force to permit the cable to` swing the frame a suflcientdistance before said pulleys will rotate, andA a pair of stops forlimiting `the swinging movement of the frame in either of twodirections'.

` RICHARD STAR.

